fix(nixos): gdm and add iwd

nixos/desktop-gnome.nix

@@ -3,10 +3,13 @@
 	imports = [./desktop.nix];
 
 	services.xserver = {
+		enable = true;
 		displayManager.gdm.enable = true;
 		desktopManager.gnome.enable = true;
 	};
 
+	networking.networkmanager.wifi.backend = "iwd";
+
 	environment.systemPackages = with pkgs; [
 		gnomeExtensions.gsconnect
 	];